Drying apparatus



2 Sheets-SheetJ 1 II Il* I I 'NVENTDR C. SENTZ. DRYING APPARATUS.

Patented Peb. 11,1890.

We; e /A (No Model.)

No 421,053I

VVI-I-N 'ESEES (No Model.) 2 Sheets-Sheet` 2.

C. SENTZ.

DRYING APPARATUS.

N0. 421,058. Patented Feb. 11,1890.

WITNESEEE lem/ENTER.

N. Pneus. Pnmuxhognpmr. wumngmm D. c.

CARL SENTZ, OF BROOKLYN, NElV YORK.

DRYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 421,058, dated February 11, 1890.

Application led July 26,1889. Serial No. 318,768. (No model.)

To all whom t may concern:

Be it known that l, CARL SENTZ, of Brook lyn, New York, have invented an Improved Drying Apparatus, of which the following is a speciiication.-

This invention relates to an apparatus for drying the waste from breweries, and also for drying fruit and other matter.

It consists in the various features of improvement more fully pointed out in the claims.

In the accompanying drawings, Figure lis a sectional elevation of my improved drying apparatus. Fig. 2is an end view of Fig. 1; Fig. 3, a section on line w, Fig. 1 and Fig. 4, a section on line y y, Fig. l.

The letter a represents a drum slightly inclined and resting upon the rollers a at one end and the rollers a2 at the other end. The rollers a2 are flanged and engage a ilange ai on drum a, while the rollers a are without flanges. Thus it will be seen that the drum is free to expand and contract under the influence of heat without slipping from the rollers. The bearings b of rollers a a2 are mounted upon a bed-plate c, from which arises a chamber d of masonry that surrounds the drum at its sides and also at one end, while the other end (right-hand end) projects out of such masonry. The chamber d has manhole d, and should be sufficiently large to create a heating-space around the drum, as shown. Into the chamber d there opens a tire-chamber e, that supplies hot air to the former.

The drum a is provided with a series of longitudinal tubes f f open at both ends and passing through the heads a'l of the drum. Into these tubes the heat from chamber d enters at one end andis discharged at the other end. The tubes ff are held in place and are prevented from sagging by a series of brackets g, riveted to the interior of the drum and provided with the double hooks g, Fig. 3, that embrace the tubes. Y

Between tubes f f small closed tubes or rods f2 are placed, that prevent the matter to be dried from settling between tubes ff.

At that end of the drum which is inclosed by chamber d there enters the feedhopper h, having a collar 7L embraced by collar hi of drum a, so that the drum is free to turn. Into hopper 7L opens a cold-air tube t', which admits fresh air to the interior of the drum at the same time that the matter to be dried is admitted by the hopper. At the opposite end the drum a enters a chamber a5. -The tubes ff project aslight distance beyond the head into this chamber, so that the smoke and heat delivered from them is not apt to strike 6o back, but will freely enter a stack j, which has flange j above head a4. The cold air admitted through tube i after traversing the drum is discharged by a tube k, entering the stack j. Below the upper end of tube k therev 65 is placed into the stack j a ring k', which is riveted to the inner face of the stack, the rivets being indicated by the small circles upon the body of the ring shown in Fig. 1. The ring la is provided with an upwardly and in- 7c wardly projecting flange that constitutes a trough. This trough collects any products of condensation that form on the inner surface ofthe stack above the ring, and carries them oft through an opening k2 in the stack, thus 75 preventing them from reaching and affecting the drum.

Below the tube the drum o, is provided with the dischargepriiices Z. These orifices are set at an oblique angle to the axis of 8o the drum and have sharp points or angles, so as to readily discharge the dried material, no matter whether the drum is revolved backward or forward. The orifices lare surrounded by a collar m, open at its lower end. Here the collar communicates with a hopper 19', through which extends a slide p. rlhe matter discharged through the orifices Z drops through the collar upon the slide, and by with drawing the latter such matter will b'e deliv- 9o ered into the lower part of the hopper.

Access to the interior of the drum is gained through man-hole a6 in head a4.

In order to form a tight adjustable packing between the exposed end of drum a and the masonry d, I secure to the masonry a fixed angle-plate q, upon which is placed an asbestus ring q. Over this ring is placed the angle plate q2, adjustable by set-screws qi against a shoulder Q4 of the drum. Around angle too plate q2 is placed a second asbestus ring g5, held in place by an encircling band al.

In use the drum is revolved from a suitable powershaft r, intergeared with toothed wheel r', surrounding drum a.. The mattei' to be dried is admitted through hopper 71., and fresh air is admitted through tube fc'. The hea-t and products of combustion from fire-chamber e enter chamber CZ and thence tubes ff. The

heat will properly dry the contents of the' drum, While such contents are gradually fed toward the discharge-orifices by the slight incline of the drum.

In my improved drying apparatus the drum will readily turn, while being free to expand and contract. The material operated upon will be uniformly dried and untainted by Smoke.

l. rlhe combination of drum a with an inclosing-chamber (l, a iire-ch amber c, connected therewith, a hopper entering one end of the drum, an air-inlet pipe entering the hopper, a chamber c5, inclosing the opposite end of the drum, a stack communicating therewith, a series of hot-air pipes passing through the drum connecting the said iirechamber and said chamber ai, and an air-outlet pipe connecting the drum with such stack, sub stantially as specified.

2. The combination of drum (o, having a series of obliquely-set discharge-orifices Z near one end, with a cut-away collar m encircling the drum around said orifices, a hopper p', communicating With the collar, a slide j) within the hopper, and a series of hot-air tubes extending through the drum, substantially as specified.

3. rlhe combination of a drum, with two sets of hot-air tubes f f extending through the drum, brackets secured within the drum, double hooks secured to the brackets and embracing the tubes, and rods f2 between the tubes f f substantially as specified.

4. The combination of a drum with an inclosing-chamber d, an angle-plate q, secured to the chamber, an asbestus ring q upon the angle-plate, an adjustable angle-plate q2, hav,- ing set-screws qi upon ring q', an asbestus ring Q5 upon angle-plate q2, and a band a7, encircling said ring, substantially as specified.

5. The combination of a drum, with a feedhopper entering one end thereof, an airinlet pipe entering the hopper, a chamber a5, inclosing the opposite end of the drum, a series of hot-air pipes passing through the drum communicating with said chamber a5, a smoke-stack entering said chamber and having opening k2, an air-discharge pipe connecting the drum with such stack, and a ilanged ring t Within the stack beneath the outlet of the air-discharge pipe, substantially as specified.

CARL SENTZ.

Vitnesscs:

F. V. BRIEsEN, A. J oNGHimNs. 

